2023/02/04 by Kashif Ammar Yasir, Gao Xianlong, Yasir, Kashif Ammar +1 · 1 citation
Computer Science · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Chaotic Dynamics (nlin.CD) #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Optics (physics.optics) #Quantum Gases (cond-mat.quant-gas) #Quantum Information and Cryptography #Quantum Physics (quant-ph) #Quantum optics and atomic interactions
paper · pdf · doi:10.48550/arxiv.2302.02147
openalex publication_date 2023/02/04 · openalex created_date 2023/02/09 · openalex updated_date 2026/07/28
We investigate the occurrence of steady-state multi-stability in a cavity system containing spin-orbit coupled Bose-Einstein condensate and driven by a strong pump laser. The applied magnetic field splits the Bose-Einstein condensate into pseudo-spin states, which then became momentum sensitive with two counter propagating Raman lasers directly interacting with ultra-cold atoms. After governing the steady-state dynamics for all associated subsystems, we show the emergence of multi-stable behavior of cavity photon number, which is unlike with previous investigation on cavity-atom systems. However, this multi-stability can be tuned with associated system parameters. Further, we illustrate the occurrence of mixed-stability behavior for atomic population of the pseudo spin-\uparrow amd spin-\downarrow states, which are appearing in so-called bi-unstable form. The collective behavior of these atomic number states interestingly possesses a transitional interface among the population of both spin states, which can be enhance and controlled by spin-orbit coupling and Zeeman field effects. Furthermore, we illustrate the emergence of secondary interface mediated by increasing the mechanical dissipation rate of the pseudo-spin states. These interfaces could be cause by the non-trivial behavior of synthetic spin state mediated by cavity. Our findings are not only crucial for the subject of optical switching, but also could provide foundation for future studies on mechanical aspect of synthetic atomic states with cavity quantum electrodynamics.